[13.1 数字滤波器](13.1%E6%95%B0%E5%AD%97%E6%BB%A4%E6%B3%A2%E5%99%A8.md) [13.2 FIFO](13.2FIFO.md) [13.3 一个精简的CPU( mini-mcu )](13.3%E4%B8%80%E4%B8%AA%E7%B2%BE%E7%AE%80%E7%9A%84CPUmini-mcu.md) [13.4 有符号数转单精度浮点数](13.4%E6%9C%89%E7%AC%A6%E5%8F%B7%E6%95%B0%E8%BD%AC%E5%8D%95%E7%B2%BE%E5%BA%A6%E6%B5%AE%E7%82%B9%E6%95%B0.md) [13.5 串口调试FPGA模板](13.5%E4%B8%B2%E5%8F%A3%E8%B0%83%E8%AF%95FPGA%E6%A8%A1%E6%9D%BF.md)